I have a vcr, dvd, cable & xbox. I have connected everything, but the problem is when I want to play xbox, I connect the yellow, white and red cables to the back of the TV from the xbox. When I want to watch a dvd I have to disconnect the xbox cables from the back of the tv and then plug in the dvd cables. Is there something that I can use that allows me to have it all. I would like to have everything connected without having to disconnect anything and have everything connected. HELP!!!!